Improvement in studs and buttons



0. RAFPLENBEUL & A. KAHL.

Studs and Buttons.

Patented Mar. 25, I879.

N. PETERS. FNOTO-LIYHOGRAPHER. WASHINGTON. D

UNITED STATES PATENT OEEIoE.

OTTO RAFFLENBEUL AND ALFRED KAHL, OF HAMBURG, GERMANY.

IMPROVEMENT IN STUDS AND BUTTONS.

Specification forming part of Letters Patent No. 213,690, dated March 25, 1879 application filed August 23, 1878 patented in England, August 19, 1878.

To all whom it may concern:

Be it known that we, OTTo RAFFLENBEUL and ALFRED KAHL, of Hamburg, Germany, have jointly invented certain Improvements in Studs and Buttons, of which the following is a description,referenoe being had to the accompanyin g drawings, forming part of this specification.

This invention relates to studs and detachable buttons in which the head of the stud or button controls a looking or holding cross-bar; and the invention consists in certain novel constructions and combinations of parts, whereby said cross-bar and a hollow shank attached to a loose back, and containing a spring which presses said shank against the cross-bar, are securely held in position to facilitate entry and a firm attachment of the stud likewise, whereby the working parts of the stud or button are protected by the. head or shell portion thereof against dirt or foreign matter.

In the accompanying drawings, Figurel represents a view, in perspective, of a stud constructed in accordance with our invention. Fig. 2 is an inverted plan or rear view, upon a larger scale, of the same, with the head of the stud removed. Fig. 3 is a transverse section on the line w 00 in Fig. 2, showing the parts in position for securing the stud. Fig. 4 is a further transverse section on the line 3 y in Fig. 5, with the parts in position for attaching or detaching the stud; and Fig. 5, a section on the line 2 z in Fig. 4.

A is a shell or cup for receiving the head B of the stud, and virtually forming a part of said head. Secured to said shell or head portion of the stud is a pin, b, arranged to centrally project from the back of the shell, and having permanently attached to its rear extremity a cross locking-bar, s. Fitted to the shell A, so as to be capable of turning around the pin b and of Ion gitudinal movement thereon, is a back, 0, consisting of a disk, 0, and oblong hollow shank cl. The disk 0 is arranged to enter a recess, 0, in the back of the shell A, whereby its edges are under cover of an inclosing-rim, f, which serves to keep dirt and foreign substances from entering the stud.

The oblong hollow shank d, which incloses the pin b, projects backward as far as the crossbar 8, and is held or forced against said crossbar by a spring, 9. A notch or opening, h, is made in the back end of the hollow shank d, to receive within it the cross-bar s when the parts are in the position represented in Figs. 2 and 3, which is when the stud is fastened to its place.

To enter the stud within a button-hole, or to detach it therefrom, the cross-bar s is brought in line with the hollow shank d, as shown in Figs. 4 and 5. This is done by the turning of the back 0 about or around the pin 1), or of the head of the stud or its shell A relatively to said back, and when the parts are in this position they are stopped or held there by a convex rear extremity of the hollow shank 01 entering a concave face of the cross-bar s, as shown in Fig. 5, the spring 9 serving to keep the hollow shank d up against the cross-bar 8. After the stud has been inserted in the button-hole, it is only necessary to turn the head in either direction to clear the convex end of the hollow shank d from out of the concave face of the cross-bar s, and to continue turning the head until the crossbar reaches a transverse position, as shown in Figs. 1, 2, and 3, in relation with the hollow shank d, when the spring y will cause the cross-bar s to enter the notch or opening it in the hollow shank d, and the stud will be locked or secured in its fastened position.

-- We claim The shell or cup A, adapted to receive the head B, and having a central pin, 1), provided with a spring, 9, and a cross locking-bar, s, in

combination with the disk 0 and oblong hollow shank d, having a notch or opening in its end to receive the cross-bar, said disk 0 being arranged within a recess, e, in the shell, all substantially as and for the purpose described.

OTTO RAFFLENBE UL. ALFRED KAHL.

Witnesses H. DAUL, J. ENGEL. 

